Heney knickmann



UNITED STATES PATENT OFFICE.

HENRY KNIOKMANN, OF EAST NEW YORK, N. Y.

ORNAMENTAL CHAIN.

SPECIFICATION forming part of Letters Patent No. 259,173, dated June 6, 1882.

Application filed April 4, 1882. (No model.)

To all whom it may concern: I

Be it known that I, HENRY KNICKMANN, a

citizen of the United States. residing at East with the rings and the transverse wires for con necting said rings, of heads for retaining said wires, and of caps for covering the heads and those portions of the wires which extend across the heads.

In the accompanying drawings, Figure 1 represents a sectional face view of my chain. Fig. 2 is a face view of one of the wire-retaining heads.

Similarletters indicate corresponding parts.

In the drawings, the letters a a represent the rings which constitute my chain. These rings are fastened together by means of transverse wires b, which are bent, as shown in Fig. 1, and which are retained by the heads 0. These heads can be made of base metal, and tbeyare provided in their faces and edges with grooves 41, Fig. 2, large enough to receive the wires. The free ends of said wires are twisted together, as shown at c, Fig. l, and the twists are turned down into the grooves d of the heads. After a sufficient number of rings a a have been secured together by the transverse wires and the wire-retainin g heads, these heads are covered by capsf, which are made of the same material as the rings, and which are fastened to said heads by turning their inner edges under the edges of the heads. By means ,of said caps those parts of the transverse wires which lie in the grooves d of the heads are concealed, and the heads as well as the wires are protected against the corrosive action of perspiration. Furthermore, the exposed surfaces of the caps are rounded, and they can be readily "kept clean. These advantages are of very great importance if it is taken in consideration that the transverse wires must, for the sake of economy, he made of brass or other base metal, which, when exposed to any corrosive'influence, soon assumes a greenish hue, whereby the appearance of the chainis marred, if any portion of said wires is exposed to view, as in the roller-chain heretofore made.

Heretofore ring-chains of the character herein described have been composed of a series of rings, transverse wires, and cups, each cup having a flat bottom pierced with two holes to receive the transverse connecting-wire, each cup being supplied with a filling-disk or counter-cup after the wires have been fastened in place, the filling-disks or counter-cups being confined within the encompassing cups by contracting the outer edges of the latter over and upon the former.

By my invention I provide a chain very simpleot' construction,comparativelyinexpensive, and which is capable of being conveniently and rapidly manufactured, as the connecting-wires can be quickly passed around the headsfiand their ends twisted and bent into the grooves therein, while the caps cover the heads and present a smooth outer surface.

W'hat I claim as new, and desire to secure by Letters Patent, is-

The combination, substantially as hereinbefore described, with the rings and the transverse wires for connecting said rings, of heads for retaining said wires, and of caps for covering the heads and the wires.

In testimony whereof I have hereunto set my hand and seal in the presence oftwo subscribing witnesses.

HENRY KNIGKMANN. [L. s] Witnesses W. HAU'FF, E. F. KASTENHUBER. 

